Home / 31,819.34-47,709.40-10,757.40

Finding the Fourth Proportional to 31,819.34, 47,709.40 and 10,757.40

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Solution

The fourth proportional to 31,819.34, 47,709.40 and 10,757.40 is: 16,129.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,819.34 : 47,709.40 = 10,757.40 : x
  2. Step 2: Convert to fraction form
    31,819.34/47,709.40 = 10,757.40/x
  3. Step 3: Cross multiply
    31,819.34x = 47,709.40 × 10,757.40
  4. Step 4: Simplify right side
    31,819.34x = 513,229,099.56
  5. Step 5: Solve for x
    x = 513,229,099.56/31,819.34
  6. Step 6: Final answer
    x = 16,129.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.